Hoops



(No Model.)

N, P. STEVENS.

MACHINE FOR DRESSING HOOPS.

No. 281,737.` Ezgzj.

- Patente IlNrrEn STATES PATENT Ormea NATHAN STEVENS, OF CONCORD, N EVHAMPSHIRE, ASSIGNOR, BY MESNE ASSIGNMENTS, TO HIMSELF AND LORENZO D.BROVN, OF SAME PLACE.

MACHINE FOR DRESSING HOOPS.

SPECIFICATION forming partof Letters :Patent No. 281,737, dated July 24,1883, Application filed April 17l 1883. (No model.)

To all whom it may concern:

Be it known that I, NATHAN PAGE STEVENS,

of Concord, in the county of Merrimack, of

the State of New Hampshire, have invented a new and useful Improvementin Machinery for Dressing Hoops 5 and I do hereby declare the sam e tobe described in the following specifi cation, and represented in theaccompanying drawings, of which Figure 1 is a top view; Fig. 2, a sideelevation 5 Fig. 3, a longitudinal section, and Fig. fl, a transversesection of a machine embodying my invention, the nature of it beingdefined in the claims hereinafter presented. The I5 said transversesection is taken through the axis of the cutter-cylinder, thelongitudinal section being taken in a plane going through the middle ofone set of the yielding and adj ustable hoop eveners or rollers. rlhemachine 2o as represented has two sets of such eveners, each set of thembeing composed of three rollers, two of which are parallel to each otherand at a distance apart and above the third one, each being not directlyover but aside of 2 5 or at a distance horizontally from such third one,as represented. Fig. 5 is a vertical section of the frame G, and twoeveners and their carriers applied thereto, as hereinafter explained.Gis a rear end elevation 5 and 3o Fig. 7, another or side elevationofthe machine. i A

The important novel feature of the machine, by which it difters fromother machines for dressing hoops by means of feed-rollers, acutter-cylinder, and drawing-rolls, is in what I term the eveners, 7each set of which, as represented, `consists of three rollers, each ofwhich is not only provided with a spring or like means to enable it toyield or move up and 4o down vertically, but has mechanism to admit `ofits adjustment nearer to or farther from the cutter-cylinder, asoccasion or the thickness of the hoop to be dressed may require. Theseeveners are arranged between the feed-rollers 4 5 and thecutter-cylinders, as represented in the drawings, in whichA is the saidcuttercylinder; B, its throat-plate; C and D, the pair of feed-rollers5and E and F and E and F, two sets of drawing-rollers.

This machine is a duplex one, inasmuch as it is capable of dressing twohoops at one and the same time. It has two sets of eveners, a singlecutter-cylinder, one lower feed-roller, two upper feedsrollers, and onelower draw` ing-roller to each set of drawing-rollers, and besides ithas a single throat-piece to the cutter-cylinder. Each upperfeed-roller, aswell as each upper drawing-roller, is a yielding onethatis its carrier is supported by a spring or springs to enable the rollerto move upward 6o and downward relatively to the fellow rollerunderneath it, whose only movement is that of revolution on its ownaxis. All the uppermost of the rollers are connected with a frame,

G, which at one end is hinged to the frame R for supporting thecutter-cylinder and the lower feed and drawing rollers.

In Fig. 3 the three eveners of one set are shown at H, I, and K in theirrelative positions. Each upper evener has its journals 7o supported in afurcated carrier, c, whose shank b is provided with a shoulder, c, andextends upward through a supporter, L, and is screw-threaded at itsupper end, as shown at d to receive a nut, c, which screws on the 7 5screw d, and against the upper end of a sleeve or tubular screw, f,which is arranged concentricall y on the shank I), and is screwed downinto the supporter L and against the upper end of a spiral spring, y,encompassing the 8o shank l and resting on the shoulder c. The supporterL rests at its middle on the median. bar, 7L, of the frame G, and isconnected thereto by one ormore clamp-screws, z', each of which goesdown througha slot, 7c, made transversely 8 5 inthe supporter, andscrews into the said bar, the same being so as to admit of the supporterbeing moved in order to adjust the evener nearer to or farther from thecutter-cylinder,

as occasion may require. The machine shown, 9o being a duplex one, asdescribed, has two evenersto each of the supporters L, though in asingle machinel adapted to dress but one hoop at one time there would bebut one evener to each of the supporters, which would be ad- 9 5justable, as described, on the frame. Each lower evener, K, has itsjournals supported in a furcated carrier, a', whose shank b is providedwith a shoulder, c', and extends down through -an adjustable supporter,L', sustained Ico .2 2eme? tude of the evener can be varied, as thethickness of the hoop-pole to be dressed may require.

Each upper feed-roller, as well as eachl upper drawing-roller, issupported by means, such as described, for sustaining an upper evenerand allowing it to yield vertically, such upper feed or drawing rollerbeing` what is usually termed a pressure-roller, it operating to keepthe hoop down upon the fellow roller beneath such feed or drawingroller. The two drawing-rollers have gears Z u on their shafts, whichengage with an intermediate gear, m, and there is a pulley, o, fixed onthe shaft of the roller F. An endless belt, p, goes around the pulley o,and a pulley, p, at one end of a shaft, q, arranged as shown. At theother end of the said shaft is another and larger pulley, r, about whichand a pulley, s, on the shaft of the cutter-cylinder an endless belt, t,passes, such shaft having a drivingpulley, u, at one and each end of it.About another pulley, fu, on the cutter-cylinder shaft, and alargerpulley, w, on another shaft, w, an endless belt, y, travels. Anotherendless belt, z, goes around a pulley, on the shaft a", and also arounda pulley, b2, on the shaft of the lower feed-roller, D.

On the cutter-cylinder being put in revolution the lower feed anddrawing rollers will, also be revolved; and 011 a hoop being introducedbetween the feed-rollers C D it, by the lower of them, will be impelledforward upon the evener K and between it and the eveners H and I, andthence will be caused to pass to and over the cutter-cylinder A and itsthroatpiece B, and thence between the rollers of each set of thedrawing-rollers E F and E F', it being in the meantime planed or dressedon its lower or flat or sawed surface by the cutter-cylinder. rlheevener K and both of 'the eveners H I, or the evener I only, arranged asshown, with the evener K, support and guide the hoop to much betteradvantage than would two rollers only arranged one directly over theother, the upper of them only o r each of them being a yielding roller,because with the three eveners, or with the eveners I and K arranged asrepresented, when a knob yor projection of the hoop may be passing anupper e of the eveners the hoop-pole can spring down independently ofthe roller K, which serves then to hold it up to the upper evener oreveners, and with such directs the hoop properly to the cutter-cylinder.The having each upper evener disposed above and not directly over theevener K, but at a sufficient distance horizontally therefrom,substantially as represented, renders the machine productive of betterresults in evenly dressing the hoop than would be the case were it tohave a set of eveners wherein one would be directly over the other.

In some cases the evener I-I may be dispensed with, the evener I,arranged above the evener K and between it and the cutter-cylinder,being used.

It is customary sometimes to saw a hooppole twice diametrically, so asto separate it into four strips, each of which is quadrantal intransverse section. Each strip has subsequently to be reduced, so as tomake it segmental in cross-section. To properly guide such strips to thefeed-rollers of the machine I use rollers M, freely revoluble on asustaining-shaft N, each roller having in and around it at itscircumference a groove triangular in cross-section, the saidsupporting-shaft being 'vertically adjustable in the machine.

l. The combination of the feed-rollers O and D and the cutter-cylinder Awith the evener K, and yalso with the evener I, arranged above 'the saidevener K andvcutter-cylinder and between them, such eveners beingbetween the feed-rollers and the cutter-cylinders and to operatesubstantially as set forth.

2. The combination of the feed-rollers C and D, the cutter-cylinder A,and the three eveners H I K, the eveners H I being in a plane above theevener K, and all three between the feed-rollers and cutter-cylinder,and arranged land to operate substantially as represented.

3. The combination of the feed-rollers C and D, the cutter-cylinder A,throat-piece B, and the evener K, and also with the evener I, arrangedabove the said evener K and between it and the cutter-cylinder, sucheveners being between the feed-roller and the cutter-cylinder,substantially as represented.

4. The combination of the feed-rollers C and D, the cutter-cylinder A,throat-piece B, and the three eveners H I K, the eveners H I being in aplane above the evener K, and all three between the feed-rollers andcutter-cylinder, and arranged and to operate substantially as set forth.

5. rIhe combination of one or more sets of drawing-rollers, E F, thefeed-rollers C and D, and cutter-cylinder A, with the' evener K, andalso with the evener I, arranged above the said evener K andcutter-cylinder and between them, such eveners being between thefeed-rollers and the cutter-cylinder, and to operate substantially asset forth.

IOO

IIO

6. The combination of one or more sets of y drawing-rollers, E F, thefeed-rollers' C and D, cutter-cylinder A, and the three eveners H I K,the eveners H I being in a plane above the evener K, and all threebetween the feed-rolli generar s ers and cutter-cylinder, and arrangedand to operate substantially as set forth.

7. The combination of one or inore sets of drawing-rollers, E E, thefeed-rollers C and I), cuttercylinder A, throat-piece B, and the threeeveners H, I, and K, the eveners H I being in a plane above the evenerK, and all three between tlie feed-rollers and cutter cylinder, andarranged, adapted, and to operate substantially as set forth.

8. rlhe combination of the cutterlcylinder A and its throat-piece B, thesingle lower feedroller, D, and two yielding feed-rollers C C thereto,two sets of eveners I K, such eveners being between the feed-roller andthe cuttercylinder, and the evener I being above the evener K andbetween it and the cutter-cylinder, a driving-roller, E, and twoyielding drawing-rollers E, adapted to such roller F, all being arrangedin manner and to operate substantially as set forth.

9. The combination, with the feed-rollers and the cutter-cylinder, ofthe eveners I and K, such eveners being between the feed-roller and theeutter-cylin der, and the evener I being above the evener K and betweenit and the cutter-cylinder, arranged substantially as described, andprovided with means of adjusting theni nearer to or farther from thecutter-cyl inder, as specified.

10. The combination, substantially as described, for sustaining eachevener and press` ure-roller, such consisting of the furoated carrier d,provided with the shoulder c, screw d, and nut e, as described, and ofthe supporter L, the spiral spring g, and the screw-threaded sleeve j',arranged and adapted essentially as set forth.

1l. The combination of the grooved guideroller M, the feed-rollers C andD, cutter-cylinder A, and the eveners I and K, such eveners beingbetween the feed-roller and the cutter-cylinder, and the evener I beingabove the evener K and between it and the cutter-eylin1 der, all beingarranged and applied substantially as set forth.

NATHAN PAGE STEVENS.

Witnesses:

R. H. EDDY, E. B. PRATT.

